| 摘要 |
<p>The device for thermofogging of a liquid composition (3) for the treatment of fruits or vegetables, comprises a reception tank (5) of the liquid composition, a ventilator having blades placed in movement of air in a zone (18) of the tank, a pipeline casing (9) disposed above the tank zone, a spray of projection by centrifugation of the liquid composition in the form of droplets in the casing so as to form a mixture with the air flow, an aspiration pipe of the liquid composition towards the spray under the effect of circulation of air flow in a mixture region (54), and an air heating device. The device for thermofogging of a liquid composition (3) for the treatment of fruits or vegetables, comprises a reception tank (5) of the liquid composition, a ventilator having blades placed in movement of air in a zone (18) of the tank, a pipeline casing (9) disposed above the tank zone, a spray of projection by centrifugation of the liquid composition in the form of droplets in the casing so as to form a mixture with the air flow, an aspiration pipe of the liquid composition towards the spray under the effect of circulation of air flow in a mixture region (54), and an air heating device disposed in upstream of the opening. The casing presents an outer opening for entrance of air and an evacuation exit, and is communicating with the tank zone so that the ventilator creates a flow of air in the casing. The mixture region of the casing is situated in downstream of the ventilator in comparison with the circulation of air flow. A fog of droplets of the liquid composition has a temperature of 100-250[deg] C and a speed of 0.1-5 m/s. The casing converges downstream of the mixture region in the direction of circulation of the air flow, and has a conical form centered on an axis in which the blades are revolving and the aspiration pipe is centered. The spray comprises a fragmentation grid for the liquid composition and a centrifuge for projecting the liquid composition and induced in rotation around the axis. The centrifuge comprises a cup in communication with the aspiration pipe. A common motor is arranged for the ventilator and the spray. A chamber is arranged for heating the disposed air in communication with the opening, and the heating device is disposed in the chamber. The air is heated to a temperature of 150-300[deg] C using the heating device. The ventilator is adapted to produce the air flow of 10-50 m 3>/h.</p> |
